From 6a7fa6bf5414a89c27f4f7d8da1ad8bb33d7c5a1 Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Mon, 24 Jul 2017 20:23:00 -0700
Subject: provide a keychange operation to rebase an identity on a new keypair

---
 Zotlabs/Daemon/Notifier.php | 25 +++++++++++++++++++++++--
 Zotlabs/Zot/IHandler.php    |  2 ++
 Zotlabs/Zot/Receiver.php    |  4 ++++
 Zotlabs/Zot/ZotHandler.php  |  4 ++++
 4 files changed, 33 insertions(+), 2 deletions(-)

(limited to 'Zotlabs')

diff --git a/Zotlabs/Daemon/Notifier.php b/Zotlabs/Daemon/Notifier.php
index 20dd96ddd..f64e6748c 100644
--- a/Zotlabs/Daemon/Notifier.php
+++ b/Zotlabs/Daemon/Notifier.php
@@ -67,6 +67,7 @@ require_once('include/bbcode.php');
  *       location               channel_id
  *       request                channel_id            xchan_hash             message_id
  *       rating                 xlink_id
+ *       keychange              channel_id
  *
  */
 
@@ -144,6 +145,20 @@ class Notifier {
 			$packet_type = 'request';
 			$normal_mode = false;
 		}
+		elseif($cmd === 'keychange') {
+			$channel = channelx_by_n($item_id);
+			$r = q("select abook_xchan from abook where abook_channel = %d",
+				intval($item_id)
+			);
+			if($r) {
+				foreach($r as $rr) {
+					$recipients[] = $rr['abook_xchan'];
+				}
+			}
+			$private = false;
+			$packet_type = 'keychange';
+			$normal_mode = false;
+		}
 		elseif($cmd == 'permission_update' || $cmd == 'permission_create') {
 			// Get the (single) recipient	
 			$r = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_self = 0",
@@ -570,12 +585,17 @@ class Notifier {
 
 			}
 
-			$hash = random_string();
+			$hash   = random_string();
 			$packet = null;
+			$pmsg   = '';
 
 			if($packet_type === 'refresh' || $packet_type === 'purge') {
 				$packet = zot_build_packet($channel,$packet_type,(($packet_recips) ? $packet_recips : null));
 			}
+			if($packet_type === 'keychange') {
+				$packet = zot_build_packet($channel,$packet_type,(($packet_recips) ? $packet_recips : null));
+				$pmsg = get_pconfig($channel['channel_id'],'system','keychange');
+			}
 			elseif($packet_type === 'request') {
 				$env = (($hub_env && $hub_env[$hub['hubloc_host'] . $hub['hubloc_sitekey']]) ? $hub_env[$hub['hubloc_host'] . $hub['hubloc_sitekey']] : '');
 				$packet = zot_build_packet($channel,$packet_type,$env,$hub['hubloc_sitekey'],$hub['site_crypto'],
@@ -589,7 +609,8 @@ class Notifier {
 					'account_id' => $channel['channel_account_id'],
 					'channel_id' => $channel['channel_id'],
 					'posturl'    => $hub['hubloc_callback'],
-					'notify'     => $packet
+					'notify'     => $packet,
+					'msg'        => (($pmsg) ? json_encode($pmsg) : '')
 				));
 			}
 			else {
diff --git a/Zotlabs/Zot/IHandler.php b/Zotlabs/Zot/IHandler.php
index eeca1555c..dd82f5be6 100644
--- a/Zotlabs/Zot/IHandler.php
+++ b/Zotlabs/Zot/IHandler.php
@@ -12,6 +12,8 @@ interface IHandler {
 
 	function Request($data);
 
+	function Rekey($sender,$data);
+
 	function AuthCheck($data,$encrypted);
 
 	function Purge($sender,$recipients);
diff --git a/Zotlabs/Zot/Receiver.php b/Zotlabs/Zot/Receiver.php
index 0050a2559..c521c9d64 100644
--- a/Zotlabs/Zot/Receiver.php
+++ b/Zotlabs/Zot/Receiver.php
@@ -120,6 +120,10 @@ class Receiver {
 				$this->handler->Notify($this->data);
 				break;
 
+			case 'rekey':
+				$this->handler->Rekey($this->sender, $this->data);
+				break;
+
 			default:
 				$this->response['message'] = 'Not implemented';
 				json_return_and_die($this->response);
diff --git a/Zotlabs/Zot/ZotHandler.php b/Zotlabs/Zot/ZotHandler.php
index aab336545..ab8815b3d 100644
--- a/Zotlabs/Zot/ZotHandler.php
+++ b/Zotlabs/Zot/ZotHandler.php
@@ -20,6 +20,10 @@ class ZotHandler implements IHandler {
 		zot_reply_message_request($data);
 	}
 
+	function Rekey($sender,$data) {
+		zot_rekey_request($sender,$data);
+	}
+
 	function AuthCheck($data,$encrypted) {
 		zot_reply_auth_check($data,$encrypted);
 	}
-- 
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